Lakes / New Jersey / Morris County / Boonton Reservoir
Boonton Reservoir, New Jersey
800.95 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Jersey
40.88 degrees N, 74.41 degrees W - Morris County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Boonton Reservoir Stacks Up
- Ranks #8 for surface area among the New Jersey lakes counted so far - 800.95 acres.
- The largest lake in Morris County among those counted.
- About 7 miles from Morristown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Mountain Lake | Morris | 1.9 mi | 74.87 acres |
| Lake Parsippany | Morris | 2.5 mi | 155.92 acres |
| Lake Valhalla | Morris | 3.9 mi | 90.19 acres |
| Cedar Lake | Morris | 3.9 mi | 92.91 acres |
| Deer Pond | Morris | 4.1 mi | 36.82 acres |
| Dixons Pond | Morris | 4.2 mi | 32.12 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Boonton Reservoir
How Big Is Boonton Reservoir?
Boonton Reservoir covers 800.95 acres in Morris County, New Jersey.
What Is the Largest Lake in Morris County?
Boonton Reservoir is the largest lake in Morris County, at 800.95 acres.
Largest Lakes in New Jersey
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Hopatcong | Sussex | 2,493.66 acres | - |
| 2 | Round Valley Reservoir | Hunterdon | 2,272.23 acres | - |
| 3 | Wanaque Reservoir | Passaic | 1,971.09 acres | - |
| 4 | Van Sciver Lake | Burlington | 1,396.61 acres | - |
| 5 | Spruce Run Reservoir | Hunterdon | 1,354.88 acres | - |
All 295 New Jersey lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 60459981). Verified October 30, 2026.